本文介绍了使用Firebase Storage时未定义的类StorageReference的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我正在尝试上传图片,并且相同的过程正在我的其他应用程序上运行,但是在这里出现了这些错误,请给我帮助吗?

i am trying to upload image, and the same process is working for my other app, but here it gives these errors, can you guy plz help?

Future getImage1() async {
    // ignore: deprecated_member_use
    var firstImage = await ImagePicker.pickImage(
        source: ImageSource.gallery, imageQuality: 65);
    setState(() {
      _image1 = firstImage;
    });
  }

推荐答案

从版本firebase_storage 5.0.1开始:

您必须执行以下操作:

Starting from Version firebase_storage 5.0.1:

You have to do the following:

FirebaseStorage storage = FirebaseStorage.instance;
Reference ref = storage.ref().child("image1" + DateTime.now().toString());
UploadTask uploadTask = ref.putFile(_image1);
uploadTask.then((res) {
   res.ref.getDownloadURL();
});

StorageReference 类已被删除,现在您必须使用 参考 . UploadTask 扩展了 Task ,它也实现了 Future< TaskSnapshot> .因此,可以在类 UploadTask 上使用 Future 类中的所有方法.

StorageReference class has been removed and now you have to use the class Reference. UploadTask extends Task, which also implements Future<TaskSnapshot>. Therefore all the methods that are in the class Future can be used on the class UploadTask.

因此,要获取图像的 url ,您需要使用 then()方法,该方法注册一个在此将来完成时要调用的回调.

So to get the url of the image, you need to use the then() method which registers a callback to be called when this future completes.

这篇关于使用Firebase Storage时未定义的类StorageReference的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

10-27 08:04